CSA T543 : 1991
Withdrawn
A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.
INTEGRATED SERVICES DIGITAL NETWORK (ISDN) - MINIMAL SET OF BEARER SERVICES FOR THE PRIMARY RATE INTERFACE
31-05-1999
12-01-2013
Defines the minimal set of bearer services for the primary rate interface for the integrated services digital network (ISDN) conforming closely to the architectural concepts as described by CCITT. Also considered is the telecommunications environment in the United States for the ISDN primary rate interface.
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